oxygen and hydrogen make water
21oxygen group element — ▪ chemical element Introduction also called chalcogen, any of the five chemical elements making up Group 16 (VIa) of the periodic classification namely, oxygen, sulfur, selenium, tellurium, and polonium. (See Figure >.) A relationship among… …
22oxygen — oxygenic /ok si jen ik/, oxygenous /ok sij euh neuhs/, adj. oxygenicity /ok si jeuh nis i tee/, n. /ok si jeuhn/, n. Chem. a colorless, odorless, gaseous element constituting about one fifth of the volume of the atmosphere and present in a… …
23Water purification — This article is about large scale, municipal water purification. For portable/emergency water purification, see portable water purification. For industrial water purification, see deionized water. For distilled water, see distilled water. Water… …
24water — /ˈwɔtə / (say wawtuh) noun 1. the liquid which in a more or less impure state constitutes rain, oceans, lakes, rivers, etc., and which in a pure state is a transparent, odourless, tasteless liquid, a compound of hydrogen and oxygen, H2O, freezing …
25Oxygen sensor — Contents 1 Automotive applications 1.1 Function of a lambda probe 1.2 The probe …
26water — wa•ter [[t]ˈwɔ tər, ˈwɒt ər[/t]] n. 1) chem. a transparent, odorless, tasteless liquid, a compound of hydrogen and oxygen, H2O, freezing at 32°F or 0°C and boiling at 212°F or 100°C, that in a more or less impure state constitutes rain, oceans,… …
27Properties of water — H2O and HOH redirect here. For other uses, see H2O (disambiguation) and HOH (disambiguation). This article is about the physical and chemical properties of pure water. For general discussion and its distribution and importance in life, see Water …
28Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …
29Water injection (oil production) — The water injection method used in oil production is where water is injected back into the reservoir usually to increase pressure and thereby stimulate production. Water injection wells can be found both on and offshore. This method is used to… …
30Hard water — Water Wa ter (w[add] t[ e]r), n. [AS. w[ae]ter; akin to OS. watar, OFries. wetir, weter, LG. & D. water, G. wasser, OHG. wazzar, Icel. vatn, Sw. vatten, Dan. vand, Goth. wat[=o], O. Slav. & Russ. voda, Gr. y dwr, Skr. udan water, ud to wet, and… …
